US4205494A - Rail grinding apparatus - Google Patents

Rail grinding apparatus Download PDF

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Publication number
US4205494A
US4205494A US06/004,260 US426079A US4205494A US 4205494 A US4205494 A US 4205494A US 426079 A US426079 A US 426079A US 4205494 A US4205494 A US 4205494A
Authority
US
United States
Prior art keywords
carriage
platform
gravity
center
rails
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
US06/004,260
Other languages
English (en)
Inventor
Albert Rivoire
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Speno Rail Services Inc
Original Assignee
Speno Rail Services Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Speno Rail Services Inc filed Critical Speno Rail Services Inc
Priority to US06/004,260 priority Critical patent/US4205494A/en
Priority to AU53765/79A priority patent/AU537781B2/en
Priority to CA342,270A priority patent/CA1112049A/en
Priority to IT47610/80A priority patent/IT1127553B/it
Priority to FR8000986A priority patent/FR2446891A1/fr
Priority to DE19803001759 priority patent/DE3001759A1/de
Application granted granted Critical
Publication of US4205494A publication Critical patent/US4205494A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01B—PERMANENT WAY; PERMANENT-WAY TOOLS; MACHINES FOR MAKING RAILWAYS OF ALL KINDS
    • E01B31/00—Working rails, sleepers, baseplates, or the like, in or on the line; Machines, tools, or auxiliary devices specially designed therefor
    • E01B31/02—Working rail or other metal track components on the spot
    • E01B31/12—Removing metal from rails, rail joints, or baseplates, e.g. for deburring welds, reconditioning worn rails
    • E01B31/17—Removing metal from rails, rail joints, or baseplates, e.g. for deburring welds, reconditioning worn rails by grinding

Definitions

  • This invention relates to rail grinders and more particularly to rail grinders mounted on a vehicle that travels along the rails as they are being ground.
  • Another object is to provide a vehicle-mounted rail grinder that does not move up and down with the vehicle as it travels over the rails.
  • Another object is to support rail grinding discs so that they pass over the troughs of the waves in the rails, but will plough through the crests of such waves.
  • Another object is to mount railroad track grinding heads on the platform supported so as to float about its center of gravity.
  • Another object is to provide for universal relative movement of a rail vehicle and rail grinding discs carried by such vehicle.
  • Another object is to provide rail grinders mounted on a platform that is supported only at its center of gravity with the ends of the platform being unattached to a vehicle that carries the assembly along the tracks being ground.
  • Another object is to provide a rail grinding assembly that is not caused to perform small rocking movements about the tracks undulation crests, since the assembly is not supported on such crests.
  • Another object is to provide rugged, durable, relatively low-cost, simplified rail grinding apparatus that does not possess defects found in prior art rail grinders.
  • FIG. 1 is a schematic, partially broken-away top plan view of a rail grinder in accord with this invention.
  • FIG. 2 is a partially broken-away end view taken along the line 2--2 in FIG. 1.
  • FIG. 3 is a side view taken along the line 3--3 in FIG. 1.
  • the drawing shows rail grinder apparatus 10 that travels along and grinds irregularities off the parallel railroad tracks or rails 11.
  • a rigid vehicle carriage 12 that travels along rails 11 has two pair of wheels 13 mounted on axles 14 which are connected by a pair of longitudinal parallel beams 15.
  • a pair of channel beams 17 connect beams 15, and the center of gravity 18 of carriage 12 occurs at the center of the space enclosed by beams 15 and 17.
  • Carriage 12 is propelled by any conventional means and moves in response to the contour and position of rails 11.
  • a plurality of circular rail grinding discs 19 are aligned between the wheels 13 on each side of carriage 12.
  • Each disc 19 is mounted on a shaft 20 powered by a motor 21 so as to rotate about a vertical axis as it grinds rails 11 in conventional manner.
  • Motors 21 are mounted on a pair of parallel platforms 23 that extend between the wheels 13. Each platform 23 is attached to a pair of parallel upwardly extending struts 24. Each pair of struts 24 is attached to a pair of parallel transverse beams 25. The inner ends of the beams 25 are attached to an upper support plate 27.
  • Grinding discs 19 are all mounted on a single platform assembly 28 defined by the individual platforms 23 and the struts 24, beams 25 and plate 27 which interconnect them.
  • Platform assembly 28 is relatively massive with respect to each individual grinding disc 19 in that the weight of the platform assembly, including motors 21, is at least about one thousand times the weight of any disc 19.
  • the center of gravity 29 of platform assembly 28 occurs at the center of plate 27, and the centers of gravity 18 and 29 are vertically aligned.
  • a pair of identical hydraulic cylinders 30 each contains a vertically movable mating piston 31. Cylinders 30 and pistons 31 are aligned equidistant from the centers of gravity 18 and 29 in the same transverse vertical plane containing such centers of gravity.
  • Each cylinder 30 has its lower end hinged to a pair of channel beams 17 means of a longitudinally extending pin 33 that is rotatable in bearings 34. Each pin 33 is secured to the bottom of a cylinder 30 and bearings 34 are secured to beams 17.
  • Each piston 31 has its upper end hinged to platform assembly 28 by means of a transversely extending pin 35 that is held in a yoke 36 attached to such piston. Each pin 35 passes through a hole in a lug 37 which is secured to the underside of plate 27.
  • each cylinder 30 defines first means pivotally connected to carriage 12 that permits pivoting about the center of gravity 18 towards and away from rails 11.
  • pistons 31 define second means pivotally connected to platform 28 that permit pivoting about the center of gravity 29 towards and away from axles 14.
  • cylinders 30 It is also possible to connect cylinders 30 to carriage 12 and pistons 31 to platform 28 by ball-in-socket hinges.
  • the pistons 31 are supported by oil or other hydraulic liquid in the bottom of cylinders 30 and air pressure is applied to the top of cylinders 30 above pistons 31. Oil and air under pressure may be supplied to cylinders 30 in any conventional manner that enables the pistons 31 to be locked into a fixed or static vertical position.
  • the vertical position of the individual grinding discs 19 may be controlled by known hydraulic circuits, as for example by those shown in U.S. Pat. Nos. 2,779,141 and 3,606,705, both of which are assigned to the same assignee as this invention.
  • the massive platform assembly 28 is floatingly supported on hydraulic fluids by hinge connections at 33 and 35 that permit universal relative movement between assembly 28 and carriage 12.
  • the undulating and irregular movements of carriage 12 caused by the imperfections in rails 11 are not transmitted to the grinding heads 19 because the centers of gravity 18 and 29 are vertically aligned in the same transverse plane containing cylinders 30 and pistons 31.
  • the cylinders 30 and pistons 31 are located at the central portions of carriage 12 and assembly 28, and the sides and ends of assembly 28 are not attached to carriage 12. This prevents the assembly 28, and hence grinding discs 19, from being supported on the crests of the track undulations and eliminates small rocking movements of the discs 19 about such crests.
  • Platform assembly 28 is also isolated from irregular movements caused by track imperfections lifting or lowering the wheels 13 on the side of apparatus 10 with respect to the wheels on the opposite side. It is also possible to support platform assembly 28 on carriage 12 with a single cylinder 30 and mating piston 31 extending directly between centers of gravity 18 and 29; such an arrangement would be otherwise identical to that shown herein and would appear in FIG. 3 exactly as the illustrated embodiment is depicted.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Machines For Laying And Maintaining Railways (AREA)
  • Grinding Of Cylindrical And Plane Surfaces (AREA)
US06/004,260 1979-01-18 1979-01-18 Rail grinding apparatus Expired - Lifetime US4205494A (en)

Priority Applications (6)

Application Number Priority Date Filing Date Title
US06/004,260 US4205494A (en) 1979-01-18 1979-01-18 Rail grinding apparatus
AU53765/79A AU537781B2 (en) 1979-01-18 1979-12-12 Vehicle-mounted rail grinder
CA342,270A CA1112049A (en) 1979-01-18 1979-12-19 Rail grinding apparatus
IT47610/80A IT1127553B (it) 1979-01-18 1980-01-16 Apparecchio per la rettifica di rotaie
FR8000986A FR2446891A1 (fr) 1979-01-18 1980-01-17 Appareil de meulage de rails
DE19803001759 DE3001759A1 (de) 1979-01-18 1980-01-18 Schienenschleifmaschine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US06/004,260 US4205494A (en) 1979-01-18 1979-01-18 Rail grinding apparatus

Publications (1)

Publication Number Publication Date
US4205494A true US4205494A (en) 1980-06-03

Family

ID=21709934

Family Applications (1)

Application Number Title Priority Date Filing Date
US06/004,260 Expired - Lifetime US4205494A (en) 1979-01-18 1979-01-18 Rail grinding apparatus

Country Status (6)

Country Link
US (1) US4205494A (bs)
AU (1) AU537781B2 (bs)
CA (1) CA1112049A (bs)
DE (1) DE3001759A1 (bs)
FR (1) FR2446891A1 (bs)
IT (1) IT1127553B (bs)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4583327A (en) * 1983-11-25 1986-04-22 Jackson Jordan, Inc. Rail grinding car
US4584798A (en) * 1984-03-29 1986-04-29 Speno Rail Services Co. Automated railway track maintenance system
US4779384A (en) * 1986-02-13 1988-10-25 Harsco Corporation Rail grinder
US5265379A (en) * 1991-03-01 1993-11-30 Speno International Sa Device for the reprofiling of the rails of railway track
US5971838A (en) * 1997-02-06 1999-10-26 Watkins; Terence John Rail-scraper devices and installations
US6033291A (en) * 1998-03-16 2000-03-07 Loram Maintenance Of Way, Inc. Offset rail grinding
US6669533B2 (en) * 2000-08-01 2003-12-30 Societe Turripinoise De Mecanique Sa Rail profile grinding machine
US20170096782A1 (en) * 2014-06-24 2017-04-06 Fama S.R.L. Tangential grinding machine for railway profiles

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB330864A (en) * 1928-11-30 1930-06-19 Hamburger Hochbahn Ag Rail-dressing truck
US2779141A (en) * 1955-11-15 1957-01-29 Speno International Railgrinder
US3358406A (en) * 1965-10-14 1967-12-19 Speno International Rail grinder
US3562959A (en) * 1968-11-20 1971-02-16 Carborundum Co Manual snagging grinders
US3606705A (en) * 1969-07-30 1971-09-21 Speno International Rail grinder
US3738066A (en) * 1970-08-14 1973-06-12 R Panetti Device for grinding long undulation waves of railway rails
US3818650A (en) * 1972-03-29 1974-06-25 Chemetron Corp Rail grinding method
US3918215A (en) * 1972-08-31 1975-11-11 Fredy Scheuchzer Carriage for grinding undulations in railway track rails

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1891174A (en) * 1931-02-18 1932-12-13 Perazzoli Henry Railway track grinder
US1928145A (en) * 1931-12-28 1933-09-26 Safety Grinding Wheel & Machin Grinding machine
US2018411A (en) * 1934-08-22 1935-10-22 Charles A Miller Rail grinder
DE660420C (de) * 1936-08-26 1938-05-28 Fried Krupp Akt Ges Schienenschleifwagen
CH581232A5 (bs) * 1975-01-13 1976-10-29 Speno International

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB330864A (en) * 1928-11-30 1930-06-19 Hamburger Hochbahn Ag Rail-dressing truck
US2779141A (en) * 1955-11-15 1957-01-29 Speno International Railgrinder
US3358406A (en) * 1965-10-14 1967-12-19 Speno International Rail grinder
US3562959A (en) * 1968-11-20 1971-02-16 Carborundum Co Manual snagging grinders
US3606705A (en) * 1969-07-30 1971-09-21 Speno International Rail grinder
US3738066A (en) * 1970-08-14 1973-06-12 R Panetti Device for grinding long undulation waves of railway rails
US3818650A (en) * 1972-03-29 1974-06-25 Chemetron Corp Rail grinding method
US3918215A (en) * 1972-08-31 1975-11-11 Fredy Scheuchzer Carriage for grinding undulations in railway track rails

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4583327A (en) * 1983-11-25 1986-04-22 Jackson Jordan, Inc. Rail grinding car
US4584798A (en) * 1984-03-29 1986-04-29 Speno Rail Services Co. Automated railway track maintenance system
US4779384A (en) * 1986-02-13 1988-10-25 Harsco Corporation Rail grinder
US5265379A (en) * 1991-03-01 1993-11-30 Speno International Sa Device for the reprofiling of the rails of railway track
AU650952B2 (en) * 1991-03-01 1994-07-07 Speno International S.A. Device for the reprofiling of the rails of railway track
US5971838A (en) * 1997-02-06 1999-10-26 Watkins; Terence John Rail-scraper devices and installations
US6033291A (en) * 1998-03-16 2000-03-07 Loram Maintenance Of Way, Inc. Offset rail grinding
US6669533B2 (en) * 2000-08-01 2003-12-30 Societe Turripinoise De Mecanique Sa Rail profile grinding machine
US20170096782A1 (en) * 2014-06-24 2017-04-06 Fama S.R.L. Tangential grinding machine for railway profiles
US9732476B2 (en) * 2014-06-24 2017-08-15 Fama S.R.L. Tangential grinding machine for railway profiles

Also Published As

Publication number Publication date
FR2446891A1 (fr) 1980-08-14
IT1127553B (it) 1986-05-21
AU5376579A (en) 1980-07-24
CA1112049A (en) 1981-11-10
IT8047610A0 (it) 1980-01-16
FR2446891B1 (bs) 1984-01-27
DE3001759A1 (de) 1980-07-24
AU537781B2 (en) 1984-07-12

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